Found in a 90’s Radio Electronics, this circuit uses a component from the time, difficult to find today. It generates 12 tones in different octaves.
This circuit controls a heating element using a triac. Triac must be fitted with a heat sink. We...
This simple unregulated half-wave font was found in old American documentation. The diode is...
This circuit is from an 80's American documentation. The circuit uses components of the time which...